Synthetic Gear Lubricant LS 75W-90 (1 qt.)
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Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.)

Part No. 104361/98W573 Warranty Details  
Mobil 1 Synthetic Gear Lubricant LS is a supreme-performance, synthetic, multipurpose SAE 75W-90 automotive gear lubricant that's designed to meet the performance requirements of modern passenger vehicles in a wide range of operating conditions, including limited-slip applications as well as deliver outstanding power transfer performance. Compared to conventional hypoid gear lubricants, Mobil 1 Synthetic Gear Lubricants LS 75W-90 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-90 achieves this through a proprietary formulation that delivers optimized viscosity-temperature properties and a high level of inherent formulation stability to protect against thermal and oxidative degradation, wear, corrosion and viscosity loss associated with premature shearing. It also can be used in extended service and for aiding in fuel economy.

Product Features:
  • Meets the most severe API Service MT-1 and GL-5 EP gear oil service classification
  • Greater film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50°C
  • Outstanding protection against low-speed/high-torque wear and high-speed scoring
  • Compatible with typical automotive seals and gaskets
  • Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended
  • Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level performance
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ATV:No
Container Size:1 qt
Container Type:Bottle
Conventional:No
Detergent or Non-Detergent:Detergent
Diesel Approved:No
High Mileage:No
Motorcycle:No
Race Only:No
Synthetic Blend:No
Synthetic:Yes
Viscosity Index:75W90

REVIEW SNAPSHOT®

by PowerReviews
Mobil1Synthetic Gear Lubricant LS 75W-90 (1 qt.)
 
4.7

(based on 54 reviews)

Ratings Distribution

  • 5 Stars

     

    (45)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (1)

98%

of respondents would recommend this to a friend.

Pros

  • Reliable (27)
  • Can withstand use (25)
  • Easy to use (23)
  • Compact (8)

Cons

No Cons

Best Uses

  • Home garage (27)
  • Upkeep (24)
  • Automotive repair shop (21)
  • Roadside repairs (4)
    • Reviewer Profile:
    • Auto enthusiast (3)
    • Reviewer Profile:
    • Auto enthusiast (20), Mechanic (14), Truck enthusiast (14), Casual driver (12), Competitive driver (5)

Most Liked Positive Review

 

good product

Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after...Read complete review

Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after I changed the fuild the chattering started, so when and got so diff additive and all good.

VS

Most Liked Negative Review

 

Waste of money- Tundra LS

Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was...Read complete review

Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was the front end, could not find anything wrong. Transmission maybe??? So I had the trans flushed at the Toyo dealer.(120k miles on truck). Could not be my rearend...I have Mobil 1. Changed over to Lucus 80W-90 standard gear oil with 1/3 of a bottle of the KW LS additive. My truck drives perfect again and turns are very smooth. Can't believe it took me 20k miles to figure out this product is all hype. The oil was still very clear though when I drained it. Only positive thing I can think of?

Reviewed by 54 customers

Displaying reviews 1-10

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5.0

Top of the line!

By 

from Clarks Summit, PA

About Me Auto Enthusiast

Verified Buyer

Pros

  • Easy To Use
  • Reliable

Cons

    Best Uses

    • Automotive Repair Shop
    • Home Garage

    Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

    Always top notch! You can't go wrong with Mobil 1. I use it for all my fluids. You can purchase it from any location and never had any failures!

    Comment on this reviewHelp Icon(earn points)

    (1 of 1 customers found this review helpful)

     
    5.0

    I shot 3 bottles of this lube right into my rear end

    By 

    from San Jose, CA

    About Me Casual Driver

    Verified Buyer

    Pros

    • Can Withstand Use
    • Compact Design
    • Easy To Use
    • Reliable

    Cons

      Best Uses

      • Automotive Repair Shop
      • Home Garage

      Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

      Believe it or not, I shot 3 bottles of this lube right into my rear end until it started leaking out onto the floor. boy o boy was that a mess , but that's when i knew my rear end was full to the max. The bottles are kinda big , they contain a quart of lube each. But, no pain no gain is what my grandma always said. and now i believe her. She was a mechanic for over 40 years and worked on everything from model t's to school buses. So shes seen lots of rear ends. I have been told you should never be caught without enough lube inside your rear end. Mobil 1 makes a fantastic lube just for this purpose and i will always treat my rear end to this wonderful lube.
      Thanks Grandma and thank you Mobil 1!

      Comment on this reviewHelp Icon(earn points)

       
      5.0

      Meets OEM Specs

      By 

      from Panama City, FL

      About Me Truck Enthusiast

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Can Withstand Use
      • Compact Design
      • Easy To Use
      • Reliable

      Cons

        Best Uses

        • Automotive Repair Shop
        • Home Garage
        • Roadside Repairs
        • Upkeep

        Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

        Mobil One after all is one of the industry leaders in synthetic lubricant products. This product is exactly what is called for as OEM for the application it is used on (front axle differental on F-250 SD 4 x 4).

        Comment on this reviewHelp Icon(earn points)

         
        5.0

        Best lubricant on the market

        By 

        from pearl river la

        About Me Professional Shop Owner

        Verified Buyer

        Pros

        • Long Life
        • Most Durable

        Cons

          Best Uses

          • Trans Differentials

          Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

          This is the absolute best quality product. I recommend to all my customers. I use this product in everything from daily drivers to commercial vehicles to racing applications.

          Comment on this reviewHelp Icon(earn points)

           
          4.0

          Needed for Differential Service

          By 

          from Culpeper, VA

          About Me Casual Driver

          Verified Buyer

          Pros

          • Reliable

          Cons

            Best Uses

            • Upkeep

            Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

            One day they will figure out and easy way to get this from the bottle to the differentials.

            Comment on this reviewHelp Icon(earn points)

             
            5.0

            Great gear lube

            By 

            from Elmwood IL

            Verified Buyer

            Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

            Changed all my differential fluids in my 2013 Toyota Tacoma
            Very straight forward process only use the best Mobil 1

            Comment on this reviewHelp Icon(earn points)

             
            5.0

            Great Oil

            By 

            from Southern Ohio

            About Me Mechanic

            Verified Buyer

            Pros

            • Can Withstand Use
            • Easy To Use
            • Reliable

            Cons

              Best Uses

              • Home Garage

              Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

              use in car's Truck's, ATV's and UTV's were it is applicable.

              Comment on this reviewHelp Icon(earn points)

               
              5.0

              Perfect for Harley Davidson transmissions

              By 

              from Newark NY

              About Me Mechanic

              Ask me a question

              Verified Buyer
              Level 3

              Pros

              • Can Withstand Use
              • Reliable

              Cons

                Best Uses

                • Automotive Repair Shop
                • Home Garage
                • Roadside Repairs
                • Upkeep

                Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                Perfect for Harley Davidsons and other gear boxes. Withstands heat a lot better than fossil oils.

                Comment on this reviewHelp Icon(earn points)

                 
                5.0

                Mobil 1 is the best !

                By 

                from Waterloo,NY

                Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                Mobil 1 the best !

                Comment on this reviewHelp Icon(earn points)

                 
                5.0

                works in either regular or limited slip differentials

                By 

                from VT

                About Me Synthetic Is The Best

                Pros

                • Can Withstand Use
                • My 2003 Pathfinder Lost I

                Cons

                • Noe

                Best Uses

                • Home Garage

                Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                easy a truck is high if its 4 wheel drive ,most times you wont have to jack it up . either suck out the old fluid or drain from drain plug and pour new gear oil in use teflon plumbing tape on threads done.

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                Displaying reviews 1-10

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                Do you have questions about this product?(earn points for answers!)

                 

                Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                39 Questions | 43 Answers
                Displaying questions 1-10Previous | Next »
                • Q:

                  Can mobil1synthetic ls be uses in front axle of 2008 Chevy 4x4 z71 that calls for 80w-90?
                  Asked on 9/17/2016 by N/a from Michigan

                  1 answer

                • Q:

                  Can you use this oil in a 2009 Chevy Avalanche rear differential ?
                  Asked on 8/5/2016 by Backdraft

                  1 answer

                  • CUSTOMER CARE

                    A:

                    I'm glad to assist, Backdraft! Mobil1 Lube Guide books shows that Mobil 1 Synthetic Gear Oil LS 75W-90- is suitable for use in the rear differential.

                    Answered on 8/10/2016 by Solomon from AAP
                • Q:

                  Will this oil work in 08 4x4 tundra's front and rear end?
                  Asked on 7/5/2016 by None

                  1 answer

                • Q:

                  I have a 2007 f-150 can this oil be used to change the gear oil and how much does it hold?
                  Asked on 7/4/2016 by Poppy

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Poppy! Since you didn't mention the specific vehicle information, it's hard to tell for sure. To give you the correct information, please let me know your vehicle's information: Front or Rear differential? If rear, what size differential?

                    Answered on 7/6/2016 by Solomon from AAP
                • Q:

                  This is MT-1 Rated, does that mean it is safe to use with brass(yellow) metals and won't eat away at the synchronizers in my manual transmission? I have a 2004 Nissan Sentra 1.8s
                  Asked on 11/10/2015 by Strahil from Chicago, IL

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Strahil, I'm glad to assist you! Unless the transmission specifically recommends an API GL-5 fluid for your transmission, it should not be used. GL-5 gear oils are designed for gears that require a high level of EP (Extreme Pressure) additives to protect gear teeth under extreme stress. Regrettably, these same additives can be very aggressive toward "yellow metals "and are generally not recommended where copper, brass and bronze components are used.

                    Answered on 11/11/2015 by Steve from AAP
                • Q:

                  Is this OK to use in a 2004 Nissan Sentra Manual Transmission?
                  Asked on 11/10/2015 by Strahil from Chicago, IL

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Strahil, happy to help you! The Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level performance. For more information, please copy and paste this product data sheet link. URL http://www.mobil.com/USA-English/Lubes/PDS/GLXXENPVLMOMobil1_Syn_Gear_Lube_LS_75W-90.aspx

                    Answered on 11/11/2015 by Steve from AAP
                • Q:

                  My 1997 Chevy Cheyenne 4.3L V6 pickup calls for 80w-90 but cannot find any full synthetic in that weight. Can I use this? What's the difference?
                  Asked on 9/20/2015 by Rod from Lakeway, TX.

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Yes, Rod. You can use 75W-90 gear oil instead of 80W-90, unless your truck specifically says not to run 75w-90 lube. If you have a limited slip differential, you also need to add some LS fluid. However, we do offer the Valvoline High-Performance 80W-90 Gear Oil (Part No. VV831) which has the API Grade Rating: GL5 or MT-1.

                    Answered on 9/21/2015 by Solomon
                • Q:

                  Can I use this as manual tranny fluid in my 99 mazda miata?
                  Asked on 8/5/2015 by RCETECH from CT

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Happy to help you with your question RCETech! For the manual transmission of your 99 Mazda Miata it calls for 90 GL-5. This Mobil 1 Part No 10436/98W57 is API Service MT-1 and GL-5 compliant so you should be OK to use it. Your transmission will take 2.1 quarts.

                    Answered on 8/5/2015 by Panda from AAP
                • Q:

                  Is the Mobil 1 75w90 compatible with "yellow metals" such as brass or bronze?
                  Asked on 7/28/2015 by aboyandhisdog from Fort Collins, Colorado

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Hi Aboyandhisdog, I'm glad to assist you! Unless the transmission specifically recommends an API GL-5 fluid for your transmission, it should not be used. GL-5 gear oils are designed for gears that require a high level of EP (Extreme Pressure) additives to protect gear teeth under extreme stress. Regrettably, these same additives can be very aggressive toward "yellow metals "and are generally not recommended where copper, brass and bronze components are used.

                    Answered on 7/29/2015 by Solomon
                • Q:

                  Recommended for 2009 Sportster XL883C Primary/Trans?
                  Asked on 4/2/2015 by raffycastro from Caguas, PR

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Happy to help you with your question Raffycastro! This gear oil is not recommended to be used for the Primary/Trans according to Harley Davidson.

                    Answered on 4/4/2015 by Panda from AAP
                Displaying questions 1-10Previous | Next »

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